San Diego County, San Diego Rat Control Situation:
Hi David, Is a UV blacklight still useful, exterior-wise, if it rains after the rodents leave their urine stains? I am in the process of performing exterior maintenance to better exclude my roof rats. 1) I have a 25 year old cedar shake roof in San Diego California with openings under each shake along the rake edge of the roof at the gable ends of my house. There's no drip edge, i.e. under the shakes I have roofing paper (now somewhat curled) that runs more or less up to and rests right atop the fascia board. Because I have skip sheathing, and since the cross section of a shake is a wedge that is up to one inch at the upper, thick end, this appears to create many huge entry points along the rake edges even though the sheathing is rabbeted into the fascia board. As a result, I'm thinking of getting a UV blacklight to use outside the house to sleuth for urine stains along the upper edge of the gable end shakes and fascia boards. My question is, how easily does the winter rain wash away the urine, rendering this a pointless exercise? 2) I noticed a new product called "rat-out gel" and was thinking of applying it along the rake edges mentioned above. Or, maybe I should just buy many rolls of X-Clude and use that instead. Or maybe both. Any comment? Thanks very much for your website, Doug
My response: First off, I do not have experience using UV lights to detect rat urine. But I do suspect that rain will severely limit the effectiveness of this approach. I have never heard of Rat-Out Gel or XClude, but I typically stick to physical barriers rather than repellent type devices. If your roof makes this impossible, you might have a tough time keeping the rats out.
San Diego Rat Control Tip of The Week
What Diseases Are Caused By Rat Urine?
Rats are undoubtedly one of the animals that transmit the greatest number of diseases worldwide. These rodents are a very unpleasant species for humans, not only because they spend a lot of time in the garbage, but also because of the risk they pose to humans.
How Can You Get Infected Through A Rat's Urine?
Unfortunately, there are many ways a person can get a disease, virus, or infection from a rodent. From the moment a rat enters your property, you are exposed to a number of dangers that can seriously affect your health.
It is possible to become infected through direct contact with an object or food contaminated with rat urine. Rats often leave a trail of urine so that other rats can follow it to the best food source. This is why there could be rat urine on your food or even in the water.
Another way to get infected is to inhale dust contaminated with rat urine. The most frequent way to get infected by rat urine is through a fresh wound; the infection will have better access to your body.
Hantavirus
It is considered to be a viral disease that seriously affects the body; it can cause hemorrhagic fever and affect the lungs. The disease is found in rodents of all types and is mainly transmitted through their urine. Some symptoms of the disease are:- Fever
- Muscular aches and chills
- Dizziness
- Gastrointestinal problems
Leptospirosis
This infection may be better known as Weil's disease. It is considered to be a risky illness because if it is not treated in time it could be fatal. It is transmitted to humans through the urine of a carrier animal, including rats. This infection has all the symptoms of a normal infection, such as fever, dizziness, and body pain, except this infection can affect multiple important organs.
